<!DOCTYPE HTML>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" src="digit.js"></script>
<script type="text/javascript" src="countdown.js"></script>
<title>运动</title>
<body style="height:80%">
<canvas id="canvas" style="height:80%;">
</canvas>

</body>
</html>